WSL2-Linux-Kernel/net/core
Jakub Kicinski 72fa0f65b5 sock: redo the psock vs ULP protection check
[ Upstream commit e34a07c0ae ]

Commit 8a59f9d1e3 ("sock: Introduce sk->sk_prot->psock_update_sk_prot()")
has moved the inet_csk_has_ulp(sk) check from sk_psock_init() to
the new tcp_bpf_update_proto() function. I'm guessing that this
was done to allow creating psocks for non-inet sockets.

Unfortunately the destruction path for psock includes the ULP
unwind, so we need to fail the sk_psock_init() itself.
Otherwise if ULP is already present we'll notice that later,
and call tcp_update_ulp() with the sk_proto of the ULP
itself, which will most likely result in the ULP looping
its callbacks.

Fixes: 8a59f9d1e3 ("sock: Introduce sk->sk_prot->psock_update_sk_prot()")
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Reviewed-by: John Fastabend <john.fastabend@gmail.com>
Reviewed-by: Jakub Sitnicki <jakub@cloudflare.com>
Tested-by: Jakub Sitnicki <jakub@cloudflare.com>
Link: https://lore.kernel.org/r/20220620191353.1184629-2-kuba@kernel.org
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-06-29 09:03:25 +02:00
..
Makefile of: net: move of_net under net/ 2022-03-08 19:12:41 +01:00
bpf_sk_storage.c bpf: Introduce MEM_RDONLY flag 2022-05-01 17:22:24 +02:00
datagram.c
datagram.h
dev.c net: fix data-race in dev_isalive() 2022-06-29 09:03:22 +02:00
dev_addr_lists.c net: dev_addr_list: handle first address in __hw_addr_add_ex 2021-09-30 13:29:09 +01:00
dev_ioctl.c net: core: don't call SIOCBRADD/DELIF for non-bridge devices 2021-08-05 11:36:59 +01:00
devlink.c devlink: Remove misleading internal_flags from health reporter dump 2022-01-27 11:05:39 +01:00
drop_monitor.c drop_monitor: fix data-race in dropmon_net_event / trace_napi_poll_hit 2022-02-23 12:03:12 +01:00
dst.c net: Remove redundant if statements 2021-08-05 13:27:50 +01:00
dst_cache.c wireguard: device: reset peer src endpoint when netns exits 2021-12-08 09:04:46 +01:00
failover.c
fib_notifier.c
fib_rules.c ipv6: fix memory leak in fib6_rule_suppress 2021-12-08 09:04:43 +01:00
filter.c bpf: Fix request_sock leak in sk lookup helpers 2022-06-29 09:03:22 +02:00
flow_dissector.c net/sched: flower: fix parsing of ethertype following VLAN header 2022-04-20 09:34:09 +02:00
flow_offload.c netfilter: nf_tables: bail out early if hardware offload is not supported 2022-06-14 18:36:17 +02:00
gen_estimator.c
gen_stats.c
gro_cells.c
hwbm.c
link_watch.c net: Write lock dev_base_lock without disabling bottom halves. 2022-06-29 09:03:22 +02:00
lwt_bpf.c bpf, lwt: Fix crash when using bpf_skb_set_tunnel_key() from bpf_xmit lwt hook 2022-05-09 09:14:35 +02:00
lwtunnel.c lwtunnel: Validate RTA_ENCAP_TYPE attribute length 2022-01-11 15:35:14 +01:00
neighbour.c net, neigh: clear whole pneigh_entry at alloc time 2021-12-14 10:57:19 +01:00
net-procfs.c net-procfs: show net devices bound packet types 2022-02-01 17:27:08 +01:00
net-sysfs.c net: fix data-race in dev_isalive() 2022-06-29 09:03:22 +02:00
net-sysfs.h
net-traces.c tcp: add tracepoint for checksum errors 2021-05-14 15:26:03 -07:00
net_namespace.c net: initialize init_net earlier 2022-04-13 20:59:03 +02:00
netclassid_cgroup.c bpf, cgroups: Fix cgroup v2 fallback on v1/v2 mixed mode 2021-09-13 16:35:58 -07:00
netevent.c
netpoll.c asm-generic/unaligned: Unify asm/unaligned.h around struct helper 2021-07-02 12:43:40 -07:00
netprio_cgroup.c bpf, cgroups: Fix cgroup v2 fallback on v1/v2 mixed mode 2021-09-13 16:35:58 -07:00
of_net.c of: net: move of_net under net/ 2022-03-08 19:12:41 +01:00
page_pool.c page_pool: use relaxed atomic for release side accounting 2021-08-24 10:46:31 +01:00
pktgen.c pktgen: remove unused variable 2021-09-03 11:48:28 +01:00
ptp_classifier.c bpf: Refactor BPF_PROG_RUN into a function 2021-08-17 00:45:07 +02:00
request_sock.c
rtnetlink.c net: Write lock dev_base_lock without disabling bottom halves. 2022-06-29 09:03:22 +02:00
scm.c memcg: enable accounting for scm_fp_list objects 2021-07-20 06:00:38 -07:00
secure_seq.c tcp: resalt the secret every 10 seconds 2022-05-18 10:26:53 +02:00
selftests.c net: selftests: add MTU test 2021-07-22 00:52:04 -07:00
skbuff.c net: fix wrong network header length 2022-05-25 09:57:35 +02:00
skmsg.c sock: redo the psock vs ULP protection check 2022-06-29 09:03:25 +02:00
sock.c net-timestamp: convert sk->sk_tskey to atomic_t 2022-03-02 11:48:01 +01:00
sock_destructor.h skb_expand_head() adjust skb->truesize incorrectly 2021-10-22 12:35:51 -07:00
sock_diag.c
sock_map.c bpf: Introduce MEM_RDONLY flag 2022-05-01 17:22:24 +02:00
sock_reuseport.c tcp: Add stats for socket migration. 2021-06-23 12:56:08 -07:00
stream.c net: stream: don't purge sk_error_queue in sk_stream_kill_queues() 2021-11-18 19:16:34 +01:00
sysctl_net_core.c bpf: Prevent increasing bpf_jit_limit above max 2021-10-22 17:23:53 -07:00
timestamping.c
tso.c
utils.c
xdp.c xdp: Move the rxq_info.mem clearing to unreg_mem_model() 2021-06-28 23:07:59 +02:00